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What is the special argument for Emacs invocation?
Emacs visits the specified files while it starts up. The last file specified on the command line becomes the current buffer; the other files are also visited in other buffers. As with most programs, the special argument ‘ — ’ says that all subsequent arguments are file names, not options, even if they start with ‘ – ’.
How to invoke pytest from the command line?
You can invoke testing through the Python interpreter from the command line: python -m pytest […] This is almost equivalent to invoking the command line script pytest […] directly, except that calling via python will also add the current directory to sys.path. Possible exit codes ¶
What does a tag mean in ctags command?
A “tag” signifies a language object for which an index entry is available (or the index entry created for that object). Alternatively, ctags can generate a cross reference file which lists, in human-readable form, information about the various source objects found in a set of language files.
Which is the first command line argument in Java?
In C and C++, argv[0] is the name of the program itself, and argv[1] is the first command-line argument to the program. In Java, args[0] is the first command-line argument to the program, and the name of the program itself is not available.)
How to customize the user options in Emacs?
Easy Customization Interface. A convenient way to find the user option variables that you want to change, and then change them, is with M-x customize. This command creates a customization buffer with which you can browse through the Emacs user options in a logically organized structure, then edit and set their values.
What can you do with EIEIO in Emacs?
EIEIO provides an Object Oriented layer for Emacs Lisp. You can use EIEIO to create classes, methods for those classes, and instances of classes. Here is a simple example of a class named person, containing three slots named name, birthday, and phone :
What should be the value of a variable in Emacs?
Lisp allows any variable to have any kind of value, but most variables that Emacs uses require a value of a certain type. Often the value should always be a string, or should always be a number.